The world’s fastest and lightest nine tire insert
Develop in Italy from racer’s requests
Extremely low density PE compound (16 kg/m3)
Patented air sealant flow channel
Fine pressure reading without dedicated valves

With more than 30 professional athletes in just two months, Tubolight is the fastest growing tire insert in XC and DH World cup. Our “small record” is that no-one who tested Tubolight, then preferred inserts from other brands.

LightnessTubolight is the lightest tire insert in the world.
TractionThanks to the damping properties, the tire has little to no rebound,
allowing for much higher traction in every situations.
Even at extremely low pressure, lateral tire roll is absent and the bike is more responsive.
Tire burp
Tubolight sits very tight on the rim, securing beads and thus eliminating the risk of tire burps.
Flat Protection
Due to the hard compound and the high volume, the protection from pinch flats is outstanding.
Rim Protection
Rim protection is guaranteed in every situation.
By far the best performing insert in case of flats, allowing for the minimum performance loss and complete rim protection. Leave at home every tire repair kit
Always use your race wheel set, riding feeling remains the same from training to race day.

Road: 10 grams (700c). For tubeless road tires. Designed as a safety device, prevents the tire to jump off the rim in case of flats.
Cyclocross: 26 mm, 17 grams (700c). For tubeless cyclocross tires. Designed to be ridden on muddy or sandy situations, when the lowest possible tire inflation is needed.
S: Gravel/MTB Marrow 32 mm, 23 grams (29"). Tubeless gravel tires from 38c to 45c.
M: 42 mm, 44 grams (29”)
L: 52 mm, 65 grams (29”)
Plus: 61 mm, 106 grams (650B). 2.80”. E-bike specific.

Every size available in all wheel diameters

Nowadays rims have become wider and even cross country tires gave reached sizes up to 2.40”, so the choice between sizes is more based on different needs than on tire size.

32 mm size
The 32 mm size, thanks to it’s lightness and moderate influence on the tire, is suited for everyone who prefers the feeling of an air-inflated tire, but still needs protection from pinch flats and tire burps. Rim protection and runflat performance are not comparable to bigger sizes, yet remain higher than devices weighting twice as much.
Best applications: Marathon, fast Cross Country, Stage Races, trail.
This size is well suited for Marathon, because of its very light weight.
It can’t be mounted on rims wider than 35 mm (external width), as rim protection would be limited.

42 mm size
The 42 mm size gives the right balance between support, protection and weight. 
Best applications: all-round Cross country, technical Marathon, trail, enduro and downhill. This is the go-to size on all tires between 2.00” and 2.30”, paired with rims between 23 mm and 30 mm. For gravity, this size can be used if a rider prefers less lateral support, especially when mounted on stiff downhill casings.

52 mm size
The 52 mm size size is best suited for aggressive riding or very rough terrain, as it gives better stability, better protection, better runflat performance.
Best applications: world cup level Cross Country racing, Enduro, Downhill, semi-plus. For wide rims and tires from 2.50”, this size is always suggested, at least on the rear tire. For 2.60” tires, the 52mm size is suggested both in the front and rear tire. 

Different tire manufacturers may measure tire size differently, so please measure the effective width and height of a tire to be sure Tubolight size is right. The 52 mm size for cross-country usage is custom made only, as it needs precise measurements of rim shape to perform correctly. Internal rim width must be at least of 28mm and only some tires can be used.

Why a rounded shape?
Many say a tubular shape is not the best for an inner tire insert, and I completely agree.
The fact is, once fitted on the rim, Tubolight takes the shape of the rim in the lower part, and an elliptical shape on the top.
This leads density of the material to become progressive, higher on the bottom, where the insert needs to secure tire beads and stabilize sidewalls, and lower on the top, for smoother shock absorption.
Compared to pre-shaped inserts, Tubolight compresses tire beads and sidewalls much stronger.
Furthermore, during installation there’s no need to “center” the insert onto the rim, once fitted it remains straight and falls inside tire beads

Break-in period
Once mounted, let Tubolight sit overnight at slightly higher pressure than usual, in order to properly get the right shape.

Can lighter tire be used?
Although lighter tires can be used, we don’t suggest the use of them.
Other manufacturers will suggest it, because they produce very heavy devices which compromise bike handling and speed. But, the result will be a lower overall flat protection compared to a heavier tire without any tire insert.
We prefer additional protection with minimum weight penalty, and that’s the reason why Tubolight gives the best overall protection/weight ratio.

How about durability?
Durability is affected by many factors, including size to inner tire volume, usual tire pressure, and runflat rides.
Tubolight is completely waterproof, doesn’t absorb sealant and keeps its performance even when slightly damaged or compressed.
There’s no risk to damage the insert when using tire plugs.
On hard usage, expect Tubolight to last as long as a medium compound tire.

Is Tubolight sealant compatible?
Yes, Tubolight is compatible with all sealants.

Which is the suggested tire inflation?
Tire inflation is subjective and depends from many factors (tire size, casing suppleness, rim width, riding style etc..).
For this reason, it’s useless to give inflation suggestions, everyone needs to find HIS preferred inflation on different situations.